개에서 구내 신연장치를 이용한 치조골증대술
ALVEOLAR RIDGE AUGMENTATION USING INTRAORAL DISTRACTION DEVICE IN DOGS
소속 상세정보
오희균
오유근/정현/유선열/최홍란/오희균/오유근/정현/유선열
KMID : 0355619990250030261
Abstract
결론
치조골증대술을 위해 새로 고안한 구내 신연장치의 사용 가능성과 유용성을 평가하기 위
하여, 개의 하악 구치부에서 구내 신연장치를 이용하여 치조골의 높이를 증대시키고 신연
완료 8주후에 임상적, 방사선학적 및 조직학적으로 검사하여 다음과 같은 결과를 얻었다.
모든 실험동물에서 감염 등 별다른 합병증은 발생하지 않았다. 평균 신연거리는 7.6±1.4
㎜였다. 모든 실험동물의 신연부위에서 신생골이 형성되었다. 신연부위에서 골개조가 관찰되
었으나 치조정 부위의 흡수는 나타나지 않았다. 일부 실험동물에서는 신연 부위의 협측 피
질골에서 골막과 연결된 섬유조직의 미입이 관찰되었다.
이상의 결과는 새로 고안한 구내 신연장치가 퇴축된 치조골의 증대술에 유용하게 사용될
수 있음을 시사하였다.
The aim of this study was to show the feasibility and potential advantages of using
the new intraoral distraction device for alveolar ridge augmentation.
Four adult mongrel dogs were used. We designed intraoral distraction device for
augmentation of vertical height of the edentulous ridge. The left upper and lower
premolars and first molars were extracted and an alveoloplasty was performed to
simulate an atrophic ridge. After 12 weeks of healing, an osteotomy was made and the
intraoral distraction device was applied in order to distract alveolar segment upward. A
permucosal pin was exposed intraorally. Latency period was allowed for 7 days before
distraction began. The distraction device was activated with a rate of 1.0 ㎜/day for 9
days. At 2 weeks after completion of the distraction, the device was removed. At 8
weeks after distraction, the animals were sacrificed. Clinical, radiographic, and histologic
examinations were performed.
Macroscopically, no significant abnormalities such as infection were occurred in the
distracted area. The average distracted distance was 7.6±1.4 ㎜ and new bone was
formed in the distracted gap in all animals. Bone remodeling without crestal bone
resorption was observed in the distracted area. In several animals, fibrous tissue was
present in the buccal cortical bone area.
These results suggest that the intraoral diatraction device may have the potential for
use in augmentation of the atrophic edentulous ridge.
키워드
Alveolar ridge augmentation; Intraoral distraction device; Distraction osteogenesis;
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